| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Osmakasaurus
Taxonomy
Osmakasaurus was named by McDonald (2011).
It was assigned to Styracosterna by McDonald (2011); and to Iguanodontia by Herne et al. (2019).
It was assigned to Styracosterna by McDonald (2011); and to Iguanodontia by Herne et al. (2019).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Osmakasaurus McDonald p. 61 |
| 2019 | Osmakasaurus Herne et al. p. 579 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. T. McDonald 2011 | Basal styracosternan distinguished from all other iguanodontians by the following unique combination of characters: cranial end of preacetabular process of ilium modified into horizontal boot, straight dor- sal margin of ilium, dorsal margin of ilium thickens mediolaterally towards the M. iliocaudalis platform (Figs. 8A, B, E). |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||
Age range: base of the Kimmeridgian to the top of the Barremian or 154.80000 to 121.40000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kimmeridgian - Tithonian | USA (Wyoming) | Camptosaurus depressus (39253) | |
| Barremian | USA (South Dakota) | Camptosaurus depressus (47344 47345) |